Ruhnu Lighthouse
Description
Ruhnu lighthouse is one of the few quadrupod lighthouses (having four supporting legs). It is said to have been designed by Gustave Eiffel and according to the plaque on the lighthouse door it was made in 1875 in Le Havre, in Normandy, France, by the company Forges et Chantiers de la Méditerranée.
Reference: 7is7.com